@Article{CL.2024.219.747,
AUTHOR = {R. Selva, I. Devadoss, A. Krishnamoorthy, S. P. Sheeba},
TITLE = {Influence of chromium concentration on the structural, optical, magnetical, and thermal properties of ZnS nanocrystals},
JOURNAL = {Chalcogenide Letters},
VOLUME = {21},
YEAR = {2024},
NUMBER = {9},
PAGES = {747--755},
URL = {http://www.techscience.com/CL/v21n9/64937},
ISSN = {1584-8663},
ABSTRACT = {Pure ZnS and Zn<sub>1-x</sub>Cr<sub>x</sub>S nanoparticles were successfully prepared using the coprecipitation 
method, where x represents the concentration (x = 0.00, 0.10, and 0.05). There are many 
analytical methods used, such as X-ray diffraction (XRD), scanning electron microscopy 
(SEM), and Spectroscopy of energy dispersive (EDS). The magnetism structure of the 
catalysts was investigated using spectrophotometry (VSM), thermogravimetric analysis 
(TGA), and differential thermal analysis (DTA). X-ray diffraction studies determine the 
nanocrystal arrangement and size of microcrystals. As seen in SEM analysis, the particles 
are agglomerated. The coordination of sulfur ions around zinc ions was examined using 
FTIR analysis. The energy band gap of the Cr-doped sample increases. Photoluminescence 
spectroscopy showed that the violet emission around 424 nm could be attributed to the 
excitation process of electrons from the low energy of the conduction band to the valence 
band of sulfur intermediate atoms. The front amplitude of doped ZnS nanocrystals remains 
constant regardless of the amount of Cr present. The results show that the ZnS nanocrystals 
were replaced by dilute Cr
<sup>3+</sup> ions. Cr-doped ZnS exhibits diamagnetic properties under hightemperature
conditions. The results show that these materials are improved by the Cr doping 
process, making them suitable for many applications. },
DOI = {10.15251/CL.2024.219.747}
}